Motor for street-cars



(Nol Model.)

Patented Mar. 12, 1895'.

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(No Model.) 4 Sheets-Sheet 3. J C SLAUGHTBR MOTOR FOR STREET. GARS.

Paten-ted Mar. 12, 1895.

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J; G. SLAUGHTER. MOTOR FOR STREET'GABS.

Patented Mar. 12', 1895..

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NirnD STATES ATENT Orrrcn.`

JOEL C. SLAUGI-ITER, OF DALLAS, TEXAS.y

MOTOR FOR STREET-CARS.

SPECIFICATION forming part of Letters Patent No. 535,734, dated March12, 1895.

Application filed June 21, 1894. Serial No, 515,219. (No model.)

To all whom t may concern:

Be it known that I, JOEL C. SLAUGHTER., a citizen of the United States,residing at Dallas, in the county of Dallas and State of Texas, haveinvented certain `new and useful Improvements in Motors for Street Cars,of which the following is a specication.

My invention relates to a car motor, and the object of the invention isto' provide a car which shall be equipped with a new and improved steammotor.

By my invention each car will have its own motor and will thus beentirely independent of every other car running on the same line.`

The invention is illustratedv in the accompanying drawings, in Which-Figure l is a longitudinal section of the floorframe and running-gear ofa street car embodying my invention. Fig. 2 is a crosssection of thesame on the line 22. l Fig. 3 is a top or plan view of the two ratchetsand pawls of the starting and stopping shaft, and the reversing shaft,respectively. Fig. 4 is a plan vieW of the parts comprising the. steamgenerator and motor. The horizontal plane of these is on the'line 4-4 ofFig. 2. Fig. 5 is a view of the governor, feed-Water plug and clutch.Fig. 6 is a plan View of the oildistributing pipes, burners and theshield to cover the burners. Fig. 7 is a vertical crosssection View ofthe feed-watercase- Fig. 8 is a Viewof one of the bearings of therevoluble feedwater plug. Fig. 9 is a perspective vieW of the bell-cranklever operated by the gov- Fig. l0 is an end View of the two pivotedshields and their operative parts. Figs. l1 and l2 are plan andelevation views, respectively, of the clutch mechanism employed whenstarting and stopping the car. Fig. 13 isa section view of the clutch onthe crank shaft. Fig. 14 is avieW separate of the lever used inreversing the direction of the motor.

ln general my invention comprises a steam cylinder and piston with whichare employed suitable gearing to connect with one or more of the axlesof the car. The fuel employed in generating the steam is oil. The heatis produced by burners, and water, in small quantities at a time, issupplied to steam 'coils over the burners. With this brief generalstatement I will now describe the parts', their construction andarrangement, and willlthen plying the latter.

explain the operation of the generator and v motor.

The letter, A, designates the Hoor-frame of a car; B, oil cylinderscarried on the car, and C, water reservoirs also on the car. Inthepresent instance Ithese are located under the seats.

The burners, D, of which any required number may be used,-in the presentinstance eight being shown-are attached to the distributing oil pipes,D', extending below the car-body and these pipes are connected with theoil cylinder, B, by means of a pipe, D2. Each burner is on a shortbranch and is controlled by a valve, ot. Four burners, D, are in line oneach side of the car and two rock shafts, E, extend longitudinally, oneat each side, being supported in bearings, b. Each rock-shaft carries ashield, E', and counterpoise Weights, E2, to balance the shield. Thisshield is a suitable curved plate to take over or above the burners, D.and interpose between the burner and the water coil, F, so as to cutoffthe flame and prevent the flame from any longer heating the water coil.These two rock-shafts have at one end short arms, c, and

a double bell-crank lever, E3, is mounted on one ofthe pipes and eachshort arm is connected by a rod, c', to the said double bellcrank lever.Thusa pull on this lever will tilt both rock shafts and thereby move theshields, E', so as to cover all the burner dames, and thereby arrest thegeneration of steam.

Two longitudinal beams, G, have their ends supported on the car axles,d, and these beams serve as a frame on which the engine and other partsare mounted.

A revoluble water'feeder, H, is inclosed in a case, H', and pipes, e,connect vthe Water storage reservoirs, C, With the said case, sup- Thesteam is generated in coils of pipe, F, which are located over or abovethe burners, D. In the present instance one coil is above each burner. Aseparate pipe, f, leads fro ni the water-feed er case, H', to eachgenerating coil, F, and a cock, f2, controls each pipe.

The revoluble water-feeder, H, comprises a cylindric or tapered plughaving small recesses,f', which are spaced apart along the plug andspirally thereon. The plug iits in a bored out case, H', wherein it isrevolved, as

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will be hereinafter described. This case has a horizontal position andat its upper side is provided with a longitudinal passage, g, into whichthe supply pipes, e, lead. From this passage are a number of shortlateral passages, g', to the tapered plug, H. These short passages arespaced apart longitudinally to correspond with the spacing of therecesses, f', inthe plug. As the plugfH, revolves only one of itsrecesses, f', at the same time will be coincident with one of the shortlateral passages, g. In revolving as it does, with a slow motion, oneafter another of the plug recesses,f', will take small quantities ofwater from the said lateral passages, g', and deliver such Water to thepipes,f, leading to the coils, F. Only one recess,f, at a time will takefeed-water. This action results from the relative spiral position whichthe said recesses onthe plug have to each other. It will be seen that aseach recess,f', is verysmall,only a minute quantity of water will be fedat a time to each generating coil.

Each generating coil, F, has its outer coil connected with a watersupplypipe, f, and its center coil is connected with a steam pipe, h,which is attached to the larger steam pipe, J, which in the presentinstance is in the form of a rectangular frame above the oil pipes, D',which has a similar rectangular frame. This pipe, J, has a branch, J',which communicates with the steam chest, K. The lower oil pipe frame,D', is suspended from the upper water pipe frame, J, by hangers, h; anda horizontal bar, h2, extends along the hangers between the said upperand lower pipe-frames and said bar serves to support the steamgenerating coils, F. The steam cylinder, L, is supported on thelongitudinal beams, G, and the steam-chest is on the side of thecylinder. A crank-shaft, M, is mounted in bearings also on the beams.The piston-rod has a slide head, i, and a connecting rod, L', connectsfrom the slide head to the crank shaft, M. Suitable gearing connectsbetween the crank shaft and the axle, d, and thus transmits motion tothe car wheels. This particular gearing will be presently described.

The end of the revoluble water feeder, H, which projects from the casingis provided with a worm gearwheehj, in the present instance loosethereon, and a worm shaft, 71;, is mounted in bearings, 7c', and is ingear with the said wheeLj, to which it gives continuous motion. By thisparticular gearing a slow revolution is imparted to the water feeder.The worm shaft, 7o, has two pulleys, k2, and the crank axle also has .apulley, k3, and a belt, 7a4, running over this last pulley and one ofthe pulleys, k2, serves to drive the worm shaft.

The crank shaft, M, has an eccentric with a collar, Z, and a rod, Z',extends from said collar to and is jointed with the rod, Z2, of thevalve gear. The side of the worm wheehj, has part of a clutch, m, landthe other clutch part, m', is on the projecting end ofthe waterfeeder,H, and is movable longitudinally thereon by means of a spline and groovecon'- nection, n. By sliding the clutch part, m', connection can be madeor broken between the worm wheel,j, and the revoluble waterfeeder plug,H. Thus the feed-plug may be caused to revolve or to cease revolving.

A governor, N, is employed for two purposes, to wit: irst, toV actuatethe clutch, m', and cause the revoluble water-feed plug, H, to ceaserevolving, and, second, to shift the shield plates, E', and thereby cntoff the heat from the steam generators, l. Connected with the governorsgrooved head, o, which revolves with the shafhp, but is free to slidethereon, is one arm q of a bell crank. The other arm g5, of this bellcrank has attached a rod, q', which passes loosely through a hanger, q2,and has a yoke-end, Q3, which is connected with acollar, g4, loose in agroove around the sliding clutch part, m. It will be seen the action ofthe governor will be such as to cause the rod, q', to have an endwisemovement and thereby the clutch part, m', will be actuated or shifted.The governorsbell-crank is xed tight on a rock-shaft, r (see Fig. 9)which has an arm,

r', and a link, r2, connects this arm with the double bell-crank lever,E3, which operates the two shields, E. It will thus be seen that whenthe speed of the engine increases beyond a certain point the action ofthe governor will pull on the double bell-crank and cause the shieldplates to cut off the heat of the burners from the coils, F. A belt, Q6,connects governor pulley, p', with one of the pnlleys, la?, of the wormshaft. As constructed in the present instance it is intended for theengine to run continuously; the governor, N, regulating the supply offeed-water and also the heat to the generators, F.

In order to start and stop the car the following mechanism is provided:One ofthe caraxles, d, has on it a fixed gear-Wheel, P, and the crankshaft, M, has on it a loose gear wheel, P', which is provided with ahollow or socket part, s, of the clutch. The tapered or cone part, s',of the clutch is also mounted on the crankshaft,and has longitudinalmovement thereon by means of the wellknown spline and groove, z5. Thiscone part, s', however, must revolve with the shaft, M. An intermediatewheel, U, gears with both the fixed wheel, P,on the axle and the loosewheel, P', on the crankshaft, and thereby the revolution ofthecrankshaft and its wheel, P', will impart motion to the car-axle andcar-wheels, V.

When it is desired to stop the car, the cone part, s', of the clutchmust be caused to slide longitudinally on the crank shaft and disengagefrom the socket part, s, and thereby allow the crank-shaft to turnfreely without revolving the wheel, P. To start the car again it is onlynecessary to move the cone part, s', of the clutch into contact with theso'cket part, s. The movement of this cone part, s', is effected bymeans of a vertical winding shaft, W, on the front of the car, andconnections between it and the said cone part, as

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follows: The cone part has a groove around it and a collar, u, fitsloose in said groove and the collar has two parallel arms, u', whichproject partly over on the socket part, s. A horizontal lever, WV', ismounted by its center on a vertical shaft, W2, which is supported underthe car by a hanger, W3, and an arm, W4. This vertical shaft carries ayoke-arm, u2, which projects at right angles with respect to the lever,see Figs. 11 and 12, and each of the two arms of this yoke is attachedby pivots to one of the parallel arms, u', on the loose collar. A chain,a3, connects from the winding shaft, WV, to one end of the horizontalle- Ver, W'. It will be seen that by pulling on either end of the lever,W', the yoke arm,u2, will draw the cone part, s', of the clutch intocontact with the socket part, s. A spiral spring, a4, has one end fixedand the other end is connected with one end of the horizontal lever,WV'. This spring serves to draw back the lever, W', after either-of thechains, a3, have been relaxed. Thus the spring, ut, also separates thetwo parts of the clutch. The winding shaft, W, has a ratchet wheel, seeFigs. 1 and 3, and a pawl, a5, engages therewith. In order to start thecar the winding shaft, W, must to turned to draw on chain, w3. This willpress the cone part, s', of the clutch against the socket part, s. Aslong as the ratchet pawl, ui", holds the shaft, W, and keeps the chain,a3, taut, the car will move. To stop the car, the motorman will releasethe pawl, a5.

The mechanism thus far described will cause the car to move inonedirection. To move it in the opposite direction the following reversingmechanism is employed:

The intermediate wheel, U, already mentioned, and shown in Fig. 1, is inthe operative position for transmitting motion from wheel, P, to thewheel, P. The operation of this wheel, U, causes the car to move in thedirection toward theleft hand. This wheel, U, and a second similarwheel, U', are both mounted on and carried by the two triangular frames,X,-one frame being at one side and the other frame at the opposite sideof the fixed wheel, P, on the axle, d, and both frames being pivoted byone of their angles on the axle. The two intermediate wheels, U, U', aremounted at the other angles of the said frames. It will thus be seen theframes, X, pivoted on the axle are capable of being so raised andlowered as to shift the position of the two intermediate wheels, U, U. Awheel, Y, is mounted on the bars, G, and is in constant engagement withthe loose wheel, P. When the upper intermediate wheel, U, istransmitting this `wheel, Y, is running idle; but when the frames, X,are raised so as to lift the two wheels, U, U', and disengage the upperwheel, U, and engage the lower wheel, U', with the wheel, Y, then thislast wheel `and the wheel, U', are transmitting.

The means for raising the pivoted frames, X, and wheels, U, U', when itis desired to reverse the direction of the motor, comprise a bell-cranklever, Z, (see Figs. 1, 11 and 14) pivoted at o, on a standard orbearing, fu". Two

pendent link bars, v2, connect one arm of this lever, Z, with the freeends of the two pivoted frames, X, and the other arm of the lever, Z,has a chain, o3, attached. This chain passes about a pulley, o, and thenpasses to the reverser winding shaft, Z', on the front of the car,adjoining the start and stop winding shaft, W.

The reverser winding shaft, Z', has a ratchet wheel, see Figs. 1 and 3,and a pawl, o5, engages therewith. When running the car in the directiontoward the left hand, see Fig. 1, the chain, v3, will be slack, but'when it is desired to run in the opposite direction the shaft,`Z', mustbe turned to tighten ,this chain and thereby raise the two wheels, U, U.

It is to be understood that I contemplate using the two winding shafts,W, and Z at both ends of the car, althoughin the drawings, for want ofroom, they areshown only at one end.

At each end of the feed-water case, H', is an adjustable bearing, H2.See Figsi, 4 and S. This bearing comprises the frame, 1, secured at theend of the ease, II, by pins or screws, 2, and having adjusting` screws,3, and the box, 4, supported by said screws. The revoluble plug, H, hasits ends in these boxes which support the plug and save from wear thetapered part.

Itis obvious that some of the parts and combinations here shown may beused without using all that are shown. It is also obvious that theconstruction of many of these parts may be varied or changed.

-From this description of the several parts and their action, theoperation of 'the motor will be readily understood.

Having thus described my invention, what I claim as new,and ldesire tosecure by Letters Patent, is-

1. In a car motor, the combination of a water reservoir; a number ofsteam generators; a case provided with a bore'and a longitudinalpassage, g, which has a connection with the said water reservoir, andalso a number of lateral passages, g', from said longitudinal passage tothe bore; a plug, I-I, revoluble in said boreand provided withwater-receiving recesses; and a separate pipe,f, leading from the saidcase to each steam. generator.

2. In a car motor, the combination of a water-reservoir; a number ofsteam generators; a case having inlet pipe connections with thewater-reservoir and outlet pipe connections with each of the steamgenerators; a water feed-plug having water-receiving recesses andmovable in said case and adapted to deliver only a small quantity ofwater at a time to each of the said steam generators; means to move saidfeed-plug; an engine; and a governor co-acting therewith and with thefeedplug, whereby when the speed of the engine IOO IIO

increases beyond a certain point the governor will automatically stopthe movement of the feed-plug.

In a car motor, the combination of awater-reservoir; a number of steamgenerators; a case having inlet pipe connections with thewater-reservoir and outlet pipe connections with each of the steamgenerators; a revoluble water feed plug having water-receiving recessesand adapted to deliver only a small quantity of water at a time to eachof said. steam generators; means to revolve the waterfeed plug; anengine supplied with steam from said generators; agovernor; and a clutchconnection between the revoluble water-feed plug and governor-saidclutch being actuated by the governor.

1t. In a car motor, the combination of a water reservoir; a number ofsteam generators; burners located underneath said generators; a casehaving inlet pipe connections with the waterreservoir and outlet pipeconnections with each of the steam generators; a water feed-plug havingwater receiving recesses and movable in said case and adapted forsupplying only a small quantity of water at a time to each of said steamgenerators; an engine without throttle to run continuously as long asthe generators furnish steam; and means for automatically andsimultaneously stopping the movement of the feed-plug and shutting offthe heat from the burners to the steam generators when the speed of theengine increases beyond a certain point.

5. In a car motor, the combination of an oil cylinder; steam generators;burners connected by means of pipes with the oil cylinder and locatedunder the steam generators; an engine supplied with steam from saidgenerators; a shield plate adapted to be interposed between the saidburners and the steam generators so as to cut off the iiame from thelatter; and means for automatically shifting the shield plate to aposition between the steam generators and burners when the speed of theengine increases beyond a certain point.

6. In a car motor, the combination of the oil cylinder; water reservoir;coil-pipe generators in communication with the water reservoir; burnerslocated underneath said coilpipe generators; an engine without throttleto run continuously as long as the generators furnish steam; acrank-shaft revolved by the action of the engine; gearing connecting thecrank-shaft and a car-axle; a clutch device coacting with thecrank-shaft and said gearing; and means for shifting the clutch forstarting and stopping the ear.

7. In a car motor, the combination of the oil cylinder; steamgenerators; an engine supplied With steam from said generators; burnersconnected by means of pipes with the oil cylinder and located under thesteam generators; a shield plate which is movable and adapted to beinterposed between the said burners and the steam generators so as tocut off the flame from the latter; and a governor co-acting with saidengine and shield plate, whereby when the speed of the engine increasesbeyond a certain point the governor will automatically shift the shieldplate.

S. In a car motor, the combination of the oil cylinder; steamgenerators; burners connected by means of pipes with the oil cylinderand located under the steam generators; a shield plate which is movableand adapted to be interposed between the said burners and the steamgenerators so as to cut off the flame from the lat-ter; awaterreservoir; a water feed device having communication with thereservoir and the steam generators; an engine supplied with steam fromsaid generators; and a governor connected with the engine, the movableshield plate and the waterfeed device, whereby when the speed of theengine increases beyond a certain point the governor will automaticallyshift the said shield plate and also cut oi the supply of water throughthe feed-water device.

9. In a car motor, the combination of an oil storage cylinder; twoparallel pipes, D', each having burners and in communication with saidoil cylinder; a water reservoir; two sets of steam generators incommunication with the water-reservoir and one set located above each ofthe said burner pipes; two pivoted shield plates one of which coactswith each of the said burner pipes; and a double bellcrank leverconnected with both of said shield plates.

l0. In a car motor, the combination of a water-reservoir; a number ofsteam generators; a case having inlet pipe connections with thewater-reservoir and outlet pipe connections with each of the steamgenerators; a revoluble feed-water plug having water-receiving recessesand adapted to deliver only a small quantity of water at a time to eachof said steam generators; a worm gear wheel loose on said plug; a wormshaft in gear with said wheel to impart continuous motion thereto; and aclutch device also on the feedplug to make and break connections andcause the feed-plug to revolve or cease to revolve.

ll. In a steam motor, the combination of a steam generator; a water-feeddevice supplying water to the generator in small quantities at a time;an engine supplied with steam power from said generator; a governor; anda clutch connection between the water feed device and the governor, saidclutch being actuated by the governor.

l2. In a car motor, the combination of a car-axle provided with a fixedgear-wheel, P; a crank-shaft provided with a loose gearwheel, P; anengine whose piston is connected with the crank-shaft; an intermediatewheel connecting the said fixed gear wheel and loose gear wheel; aclutch on the crank-shaft co-acting with the said loose gear wheel; awinding shaft, WV; and connections between the clutch and winding shaft,whereby the IOO ICE

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car may be started or stopped without stopping the engine.

13. In a car motor, the combination ot' a car-axle provided with a fixedgear-Wheel, P; a crank-shaft provided with a loose gearwheel, P; anengine whose piston is connected with the crank-shaft; a clutch on thecrank-shaft co-acting with the said loose gearwheel; a winding shaft, W;alever, W', for operating the clutch; a chain, n3, connecting thewinding shaft and said lever; and a spring, n4, also connected with thesaid lever.

14:. In a car motor, the combination of an engine without throttle torun continuously so long as the generators furnish steam; a shaft drivenby said engine and provided with a loose wheel, P; a clutch on saidshaft coacting with the loose Wheel a fixed gear wheel on the car-axle;means to transmit motion between the loose wheel and said fixed wheel;and means to shift the clutch for starting and stopping the car.

15. In a car motor, the combination of a car-axle provided with a fixedgearwheel, P; a crank-shaft provided with a loose gear- Wheel,P anengine whose piston is connected with the crankshaft; a wheel, Y, inconstant engagement with the said loose wheel a frame pivoted on thecar-axle and carrying two intermediate wheels, U, U', which are inconstant engagement with the said fixed wheel and one ofsaidlintermediate wheels, U, adapted to engage with the said loose gearwheel, and the other intermediate wheel, U',

adapted to engage with the said Wheel, Y; and means for raising the saidpivoted frame.

16. In acar motor, the herein-described reversingmechanism having incombination a car-axle provided with a fixed gear-wheel; a wheel, P',driven by 'the motor; a wheel, Y, in constant engagement with the saiddriven Wheel; a pivoted frame carrying two intermediate wheels, U, U; abell-crank lever, Z; links connecting one arm of the bell-crank leverwith the pivoted frame; 'a winding shat't; and a chain connecting theother arm of the bell-crank lever with the winding shaft.

1'7. In a car motor, the combination of an engine without throttle torun continuously as long as the generators furnish steam; a shaft drivenby said engine and provided with a loose Wheel, P a clutch on said shaftcoacting with the loose Wheel; a fixed gear wheel on the car axle; awheel, Y, in constant engagement with the loose wheel; a pivoted framecarrying two intermediate Wheels; a Winding shaft, W; and connectionsfor operating the clutch to stop and start the car; and a second windingshaft, Z', connected with the said pivoted frame to reverse the movementof the car.

In testimony whereof I aiiix my signature in the presence of twowitnesses.

JOEL C. SLAUGHTER.

y I/Vitnesses:

H. D. S. KNIFFIN, C. GORDON.

